Wednesday, November 5, 2008

Shifts to and from Daylight Saving Time and Incidence of Myocardial Infarction.

More than 1.5 billion men and women are exposed to the transitions involved in daylight saving time: turning clocks forward by an hour in the spring and backward by an hour in the autumn. These transitions can disrupt chronobiologic rhythms and influence the duration and quality of sleep, and the effect lasts for several days after the shifts.

Not incidentally, Daylight Saving Time returns on March 8, 2009 to most of the United States.

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